How to do something only to the first item within a loop in python?
list, loops, python
Solution
A few choices, in descending order of Pythonicity:
for index, item in enumerate(lst): # note: don't use list
if not index: # or if index == 0:
# first item
else:
# other items
Or:
first = True
for item in lst:
if first:
first = False
# first item
else:
# other items
Or:
for index in range(len(lst)):
item = lst[i]
if not index:
# first item
else:
# other items
Problem
I want to do something different to the the first item in a list. What is the most pythonic way of doing so? ``` for item in list: # only if its the first item, do something # otherwise do something else ```